These cute little imitation surveillance cameras are for Santa and his elves to make sure children are staying on the nice list! Cameras measure about 4.5" in diameter and are slightly less than 3" high. Mounting screws are included to mount this to your ceiling. It takes 2 AA batteries so that a little red flashing LED light always stays on. Note that these are faux cameras and do not really record anything (but kids don't have to know that). This can pop up in the middle of the night or while they were at school. *This listing is for one camera. They are imported from the United Kingdom and the packaging arrived a little dinged up, but the red lights still all work. We've discounted the price from $15 to $10.50 because the boxes aren't in perfect condition.